Electric field driven focusing and transport of plasma ion beams by micro-glass capillaries beyond the self-focusing limit
Sushanta Barman,
Sudeep Bhattacharjee
Abstract:Micro-glass capillaries emerge as an important tool for the lossless guiding and focusing of ion beams (Takao M Kojima 2018 J. Phys. B: At. Mol. Opt. Phys. 51 042001). The self-focusing mechanism of the capillaries is primarily governed by charged patches induced on their inner walls by the incident beam (Stolterfoht et al 2002 Phys. Rev. Lett. 88 133201). However, the dominance of space charge forces over self-focusing forces in intense (J ∽ 1 A/m2) ion beams establishes a self-focusing limit, posing challeng… Show more
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